A company manufactures widgets The daily marginal cost to pr

A company manufactures widgets. The daily marginal cost to produce X widgets is found to be C\'(x) = 0.000009x^2 - 0.009x^2 + 8 (measured in dollars per unit). The daily fixed cost is $120. Find general cost function, total cost of producing 500 widgets, and if you sell the widgets for $25 each, how many will have to be sold before the company makes a profit? (Hint: Revenue function is R(x) =$25x.